Use of life cycle assessment methodology for determining phytoremediation potentials of maize-based cropping systems in fields with nitrogen fertilizer over-dose

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• 作者：Sheng-Wei Nie ; Wang-Sheng Gao ; Yuan-Quan Chen ; Peng Sui ; A. Egrinya Eneji
• 关键词：Life cycle assessment ; Phytoremediation ; Environment impact ; Nitrogen fertilizer
• 刊名：Journal of Cleaner Production
• 出版年：2010
• 出版时间：November 2010
• 年：2010
• 卷：18
• 期：15
• 页码：1530-1534
• 全文大小：561 K

文摘

Using the life cycle assessment (LCA) method, we analyzed the effects of different cropping systems (sole maize (CK), maize + soybean (CST) and maize + groundnut (CGT)) on the environment. The comprehensive index of environmental impacts varied in the order, sole maize > maize + groundnut > maize + soybean, with corresponding intercropping values of 0.1295, 0.1229 and 0.0945, respectively. The results showed that intercropping maize with suitable plants (e.g., groundnut and soybean) could reduce the adverse effects of over-application of nitrogen fertilizer on the environment. The study further showed that the LCA method may be a convenient and effective approach for analyzing the environmental impact of fertilizer management in agricultural fields.